Home / 12,131,876.19-18,206,852.33-8,901,760.71

Finding the Fourth Proportional to 12,131,876.19, 18,206,852.33 and 8,901,760.71

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Solution

The fourth proportional to 12,131,876.19, 18,206,852.33 and 8,901,760.71 is: 13,359,272.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,131,876.19 : 18,206,852.33 = 8,901,760.71 : x
  2. Step 2: Convert to fraction form
    12,131,876.19/18,206,852.33 = 8,901,760.71/x
  3. Step 3: Cross multiply
    12,131,876.19x = 18,206,852.33 × 8,901,760.71
  4. Step 4: Simplify right side
    12,131,876.19x = 162,073,042,610,677.31
  5. Step 5: Solve for x
    x = 162,073,042,610,677.31/12,131,876.19
  6. Step 6: Final answer
    x = 13,359,272.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.